I can get the glitch to happen, it's where to go and how to move. I have no idea how to move, it just keeps saying, "You are not allowed to move here." Or something like it.

Thats probably because youve reached the vorder of the map. Often you can get stuck if you fly really fast into the border.

ok thanks

Sombra switch pls

Also, one last thing, Im a little lost what Wazmannen did at about here, Any description of it? thanks.

I quicksaved midair, tilted and quickloaded, then went backwards and forwards (going forward is locked until you go backwards first) to set my momentum as going forwards then reloaded the save and landed in riften lake by going first person view to cancel my speed.